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Old 04-27-2019, 07:24 PM   #1
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Wfco wf-8955an cooling fan

I am on shore power all the time, I do not hear the cooling fan come on when we turned on a lot of the lights , l have not heard it in some time, use to hear it often.. The cool if fanis suppose to comes on under load if needed. l keep my battery watered and it's only two years old so it's good, also checked with multimeter it checks out fine. I do know Converter will shut down if it over heats,and it has not, l am just being cautious about the cooling fan. I turned all the lights on in the TT tonight an still no cooling fan comes on. Any ideas?
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Old 04-27-2019, 10:26 PM   #2
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Per WFCO
Should my fan run all the time?
No. The fan is controlled by the load. The fan will start running at a low speed when you have approx. 3.0 to 6.0 DC Amp draw. It will increase in speed as you add more load until you have approx. 14.0 to 15.0 Amps draw. At this point, the fan is at its maximum speed and will stay there even if you add more load, should amperage drop below 3.0 to 6.0 DC amps, the fan will shut off.


Your fan is either bad or the load sensor is faulty cause it should run with high load


Fan AC Power is via one of the individual circuit breakers....usually #2 CB
Black wire to CB, White wire to Neutral Bus Bar (upper), Green wire to Ground Bus Bar (side)
Sensor....should be couple wires from fan to small black box attached to the finned block


WFCO
877-294-8997
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Old 04-28-2019, 09:24 AM   #3
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Quote:
Originally Posted by Old-Biscuit View Post
Per WFCO
Should my fan run all the time?
No. The fan is controlled by the load. The fan will start running at a low speed when you have approx. 3.0 to 6.0 DC Amp draw. It will increase in speed as you add more load until you have approx. 14.0 to 15.0 Amps draw. At this point, the fan is at its maximum speed and will stay there even if you add more load, should amperage drop below 3.0 to 6.0 DC amps, the fan will shut off.


Your fan is either bad or the load sensor is faulty cause it should run with high load


Fan AC Power is via one of the individual circuit breakers....usually #2 CB
Black wire to CB, White wire to Neutral Bus Bar (upper), Green wire to Ground Bus Bar (side)
Sensor....should be couple wires from fan to small black box attached to the finned block


WFCO
877-294-8997
Thank for this information, my TT is a 2007 so l will order a main board and change out fan and board.
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Old 05-09-2019, 04:18 PM   #4
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Changed out the main board and fixed the problem.
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Old 05-09-2019, 10:47 PM   #5
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Originally Posted by cardwellm View Post
Changed out the main board and fixed the problem.

Thanks for posting update and resolution


Good to know what the fix was
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